ENGINE (DIAGNOSTICS)(H4DOTC) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P0246 TURBO/SUPER CHARGER WASTEGATE SOLENOID “A” HIGH

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Poor driving performance

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode and Inspection Mode

WIRING DIAGRAM:

STEPCHECKYESNO

1.CHECK HARNESS BETWEEN ECM AND WASTEGATE CONTROL SOLENOID VALVE.

1) Turn the ignition switch to OFF.

2) Disconnect the connector from ECM and wastegate control solenoid valve.

3) Turn the ignition switch to ON.

4) Measure the voltage between ECM and chassis ground.

Connector & terminal

(B137) No. 27 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Repair short circuit of the harness to power supply between ECM and wastegate control solenoid valve connector.

2.CHECK WASTEGATE CONTROL SOLENOID VALVE.

1) Turn the ignition switch to OFF.

2) Measure the resistance between wastegate control solenoid valve terminals.

Terminals

No. 1 — No. 2:

Is the resistance less than 1 Ω?

Replace the wastegate control solenoid valve.

Repair the poor contact of the ECM connector.